1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe2b5c2f92c4f5b16f5ff3ac7e49bb3406e3e242d308c5b5175950aa516c5e01. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b884a69a-a328-4d93-8974-58adf178fff5.json and https://artists.proofprofile.net/proofs/artist/b884a69a-a328-4d93-8974-58adf178fff5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741f31a5ea2f999c3ced8efc6a4ab8eb3f3008158f89945ad73a37cac79e5309. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:35:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB42360796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba3e468c8208b5791f2a19f874ae84780cfe0b87d960463ec56eacd5f0bd8ba. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFE2436399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4a3b9cb06c7dcd613c98be2f725ef7374445ca700e58a555b03c446187e8b6. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:16:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFR2466785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36e99ffa6550c4eaa87ac71bcf187ea5c1dc5033c544cb8b68182aabe8930e0. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:15:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFX2439413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e65468708dd4ff6b27af69b3b7f61e74594ccf30eaeb4bfd73db03922dbcbea. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7M2486291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b01d25f6419b3008fe9c7967bbf6f38a915e1c78fbff2c97e22a4ac8358992. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3F32447235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea4559afc7d083a116d209a002d630ba945b5ab27a8390f4d3ed41c430e366f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYY2574173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b54c47f8bfa374b56fce4fcd84c72169d338a3c4eb8beeecec776af094966a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ22590801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c1731a7f053692474253dd4e87cc28e052073074c1e485be51bb18696d4823. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA72593914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00528cde5955fcc23d51203fb0fe9d7f54454513b79820217363426717929752. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES92509433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e710ab1b7b11b7fe0597ac907702154b6bf955c9422dc2859c8a3e549893130. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES92582038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176f10b2a0084667ece443f2769deca02672ad991fd5bb8c6906358c62b06011. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6M2534445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b83714aae6668093bd9ee87f1889a5631812209e1c923c2ab64a57ef986b63. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEN2559806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1697c8c40026038bceb062ec85c77edb73317e9f2d08f09b9542a0049b7b453d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:42:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWX2547265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8735988ba0986fbb4a19904b6c366a6f7ce20f04d6cc18dcd1f364e0463c3764. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:48:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP42556249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc21793f1dd9865ca926c637325e9005299f39a472fe29074241fd80f6c027e3c. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T07:58:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAZ2505142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7afd66c587e73aed3bbe51792a537a5ab780d33187d5aaa3b2c19aa4ecb03e32. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFQ2570885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8afb0112e1de846d1b60759f494dca95094968e27b77f4fb74e4df80b424eeec. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFQ2570886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa5bc4f32fed040f8b8257b469b7fba2d4cdfbdb70c567b641fdf2cfa30954eb. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFQ2570889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c4471a9e7889f076c8a1470689a796e7150c2ba53f8163d6a5182a835fae06. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFQ2570891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc770ec508517d2b956eb1aa8499478929b8834c09c9ca727f40d76dc392eb4. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFQ2570892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae8cf320d94c035e7fc4ff82a051930fd33ed6e767929da0c4c9088aad478af. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7K2531015.